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Welcome back.
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We have talked a lot
about what people
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search for online and
which kind of information
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they distribute when
they use the internet.
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We haven't touched the
fact that it's also
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possible to collaborate
online on really large scales.
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There are services out there
like Mechanical Turk, which
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allow you to distribute a
large task by splitting it up
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into small individual
pieces, and these pieces
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are completed by humans
around the globe.
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You pay this human a certain
small amount of money,
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and for a number of
seconds or a few minutes,
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these people meet
in order to complete
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these individual tasks which
complete the overall huge task
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you have set.
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So this is one form of
online collaboration,
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to maybe transcribe a
video or to do things
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where it is really complicated
to get computers to do it.
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There are also other forms
of online collaboration
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where people share
voluntarily their workforce
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to complete a major task.
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And this is in
particular important
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when it is most urgently
needed, in particular,
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during times of disasters.
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So one example is
the disaster which
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happened a number of
years ago in Haiti
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when a major earthquake
hit the country.
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So after a disaster, it is
crucial to have information.
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You need information where help
is needed and, in particular,
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also how to get there.
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This is of crucial importance
if infrastructure got destroyed
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and maybe map material
is not available
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or no longer up-to-date.
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Via an open project on
a global scale, which
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is called Open
Street Maps, people
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were able to contribute to help.
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Open Street Map provides
you with information
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on where roads and
streets are located,
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and you can contribute
by updating, by editing
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this information or to actually
add new roads where there
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was no information before.
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This is of crucial
importance if you
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look at a country which was
just hit by an earthquake.
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The roads are no longer
available to connect
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one village to the next.
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In a huge collaborative
effort around the globe,
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people updated this material
looking at updated satellite
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images to make sure that helpers
can reach the places they
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are most urgently needed.
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Within hours, a new updated
version of this map for Haiti
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was created which
helped significantly
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in order to deal
with the disasters
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and to deploy
emergency resources.
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